Religion: Bad and Irrational Parts of

1. Reliance on supernatural beings to solve problems here in this life.
2. Silliness of expecting God to require worship.
3. Psychological harm of making everyone feel sinful.
4. The concept that one's own religion is the only true religion, even though it should be obvious that one's own religion depends to a high degree of probability on the religion of one's parents and the culture one is brought up in.
5. The idiotic idea that certain books are the sacred word of God when it is patently obvious that they were written by men with the feelings and concerns of men, particularly for the time when they were written.
6. Closing one's eyes to the contradictions of these books (particularly the Christian Bible).
7. And not just contradictions of fact, but contradictions of theology; for example, "turn the other cheek" whilst God does nothing of the sort in the old Testament but condemns whole populations of people to death who happen to be "enemies" of the chosen people.
8. Ignoring the fact that God, as written about in the Old Testament, is as cruel and merciless as men.
9. Belief in "miracles". If God can heal a person of some difficult-to-prove ailment, why does he not do something really spectacular like giving a new leg to an amputee?
10. When going into battle, prayers are said for victory in the belief that God is on our side. But if God were on our side, no battle would be necessary. We could disarm unilaterally and God would see to it that our enemy was vanquished (see Old Testament for examples).